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  • Alfred Wegener Institute for Polar and Marine Research  (3)
  • Hindawi  (2)
  • AGU (American Geophysical Union)  (1)
  • 2010-2014  (6)
  • 1
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    Analysis of Measured Drop Size Spectra over Land and Sea (2012)
    Hindawi
    Details
    Publication Date: 2012-01-01
    Description: Drop size spectra were measured by using an optical disdrometer of type ODM 470 at different locations. They were subdivided in to four data sets: measurements over land, in coastal areas, over semienclosed seas, and over the open sea. Based on 1-minute measurement intervals, no differences were found in drop size spectra between continental and maritime areas. An exponential model with a rain rate depending on interception number and prefactor in the exponent fits well the spectra, and maximum drop sizes depend strongly on estimated rain rates. In contrast to other investigations, there are no significant differences between spectra of convective and stratiform rain based on 1-minute measurement intervals. However, spectra integrated over 10 minutes show the expected differences.
    Print ISSN: 2090-7516
    Electronic ISSN: 2090-7524
    Topics: Geosciences , Physics
    Published by Hindawi
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  • 2
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    Analysis of measured drop size spectra over land and sea (2012)
    Hindawi
    In:  ISRN Meteorology, 2012 (ID 296575). pp. 1-10.
    Details
    Publication Date: 2017-05-31
    Description: Drop size spectra were measured by using an optical disdrometer of type ODM 470 at 2 different locations. They were subdivided in four data sets: measurements over land, in 3 coastal areas, over semi-enclosed seas, and over the open sea. Based on 1 minute 4 measurement intervals no differences were found in drop size spectra between continental and 5 maritime areas. An exponential model with a rain rate depending interception number and 6 pre-factor in the exponent fits well the spectra, maximum drop sizes depend strongly on 7 estimated rain rates. In contrast to other investigations there are no significant differences 8 between spectra of convective and stratiform rain based on 1 minute measurement intervals. 9 However, spectra integrated over 10 minutes show the expected differences.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 3
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    Mixed layer heat and salinity budgets during the onset of the 2011 Atlantic cold tongue (2014)
    AGU (American Geophysical Union) | Wiley
    In:  Journal of Geophysical Research: Oceans, 119 . pp. 7882-7910.
    Details
    Publication Date: 2021-05-19
    Description: The mixed layer (ML) temperature and salinity changes in the central tropical Atlantic have been studied by a dedicated experiment (Cold Tongue Experiment (CTE)) carried out from May to July 2011. The CTE was based on two successive research cruises, a glider swarm, and moored observations. The acquired in situ data sets together with satellite, reanalysis, and assimilation model data were used to evaluate box-averaged ML heat and salinity budgets for two subregions: (1) the western equatorial Atlantic cold tongue (ACT) (23°–10°W) and (2) the region north of the ACT. The strong ML heat loss in the ACT region during the CTE was found to be the result of the balance of warming due to net surface heat flux and cooling due to zonal advection and diapycnal mixing. The northern region was characterized by weak cooling and the dominant balance of net surface heat flux and zonal advection. A strong salinity increase occurred at the equator, 10°W, just before the CTE. During the CTE, ML salinity in the ACT region slightly increased. Largest contributions to the ML salinity budget were zonal advection and the net surface freshwater flux. While essential for the ML heat budget in the ACT region, diapycnal mixing played only a minor role for the ML salinity budget. In the region north of the ACT, the ML freshened at the beginning of the CTE due to precipitation, followed by a weak salinity increase. Zonal advection changed sign contributing to ML freshening at the beginning of the CTE and salinity increase afterward.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
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  • 4
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    Weekly reports for R.V. Polarstern expedition ANT-XXVII/1 (2010-10-25 - 2010-11-26, Bremerhaven - Cape Town), German and English version (2010)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
    Details
    Publication Date: 2014-12-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: Weekly Reports , notRev
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  • 5
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    Weekly reports for R.V. Polarstern expedition ANT-XXVIII/5 (2012-04-10 - 2012-05-15, Punta Arenas - Bremerhaven), German and English version (2012)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research
    Details
    Publication Date: 2014-12-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: Weekly Reports , notRev
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  • 6
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    The expedition of the research vessel "Polarstern" to the Antarctic in 2012 (ANT-XXVIII/5) (2012)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 654, 73 p., ISSN: 1866-3192
    Details
    Publication Date: 2018-09-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Berichte zur Polar- und Meeresforschung" , notRev
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